Adcom GTP-760 - Manual (Page 39)

Operating Room 2 From “Room 2”
In addition to the front panel Room 2 controls, the GTP-760 provides an interface for controlling Room 2
remotely. Such a connection is technically sophisticated and usually intended only for custom
installations. Please contact your ADCOM dealer or ADCOM directly for further information on these
advanced features and capabilities.
5.0 TROUBLE SHOOTING
Your GTP-760’s circuitry is built around advanced microprocessors. The GTP-760 may exhibit
occasional anomalies arising from AC line surges, etc. If you experience unexpected behavior,
or if the GTP-760 “locks up” and does not respond to control input, reset it by turning the front
power switch off. (Do not use the remote control’s “power” button.) Wait 10 seconds and then
turn the GTP-760 on. This will reset the internal control circuitry and solve most problems.
SYMPTOM POSSIBLE REASON POSSIBLE SOLUTION
Power LED does not light AC Power Cord not plugged in Plug in AC Power Cord
AC Fuse failed Replace AC Fuse
Power LED glows Power amp or source unit is not ON Make sure whole system is ON
but no sound
No Video Output Video Processor (rear panel) is ON Move video processor switch to OFF
No sound from one channel Connections in rear of amp are loose Verify all connections on rear of amp
Input or Output connector Verify both connections on that
disconnected or loose channel
Speaker disconnected Verify connection at speaker
Hum from all speakers Ground loop present If cable TV is present, see Note 1
(any volume) (difference in ground voltages If cable TV is not present,
between components) see Note 2
A major appliance, dimmer, Make sure all appliances, dimmers
halogen or fluorescent light may be and suspect lights are off
creating interference
Hum from all speakers Problem with source unit (CD, etc.) Try different source to verify
(increases or decreases with
change in system volume)
Problem with cable connecting that Try different cable to verify
source to the Tuner/pre-amp
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